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0. W GLAYBOURNE. CLEANING DEVICE FOR HYDROGARBON BURNERS.

No. 508,369. Patented Nov. 7, 1893.

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hereby declare that the following is a full,

UNITED STATES PATENT OFFICE.

COLIN W. CLAYBOURNE, OF INDIANAPOLIS, INDIANA.

CLEANING DEVICE FOR HYDROCARB ON-BURNERS.

SPECIFICATION forming part of Letters Patent No. 508,369, dated November 7, 1893. Application filed January 3, 1893- Serial No. 7| N m l To all whom it may concern.-

Be it known that I, OoLIN W. OLAYBOURNE, a citizen of the United States, residing at Indianapolis, in the county of Marion, and in the State of Indiana, have invented certain new and useful Improvements in Cleaning Devices for Hydrocarbon-Burners; and I do clear, and exact description thereof, reference being had to the accompanying drawings, in which Figure 1 shows a perspective view of a hy: dro-carbon burner, with myinvention applied, and Fig. 2, a longitudinal sectional view showing the burner proper, in longitudinal central section, and the pipes and connections in elevation.

Letters of like name and kind refer to like parts in each of the figures.

The object of my invention has been to pro: vide ready and efficient means for quickly and thoroughly cleaning out the parts of hydro-carbon burners, without the necessity of disconnectingthe parts and cleaning with kerosene, or other cleaning liquid, as has been the practice heretofore, and to this end my invention consists in the burner cleaning device, and its combination with the burner, as hereinafter specified.

While I shall show and'describe my invention as applied to the form of burner invented by Walter E. Harris and myself, and shown and described in our pending application for United States patent, Serial No. 447,326, I desire it to be understood thatit is also applicable to other forms of burners adapted to burn hydro-carbons,or liquid fuel, wherever any of the burnerparts are liable to become dirty or clogged during use. Since the burner proper, appearing in the present drawings, is the same in construction and operation, as that set forth and fully described in thesaid other application, I need not describe its construction and manner of working at length herein.

f There is the bodyA, provided with the longitudinal air passage a, and the oil and steam inlet passages a and a respectively, the formei'i'connected Withone or more inwardly and forwardly inclined oil jet holes a a extending into the space at the forward end of the passage a, which forms a mixing chamber a for the oil, air, and steam. The steam passage a? extends inward, and then forward, so as to discharge its steam at or near the central portion of chamber (1 across the inwardly and forwardly inclined oil jet or jets. At the outer end of the mixing chamber is an enlarged expansion and combustion chamber a within which the mixture of oil, steam, and air will expand and become thoroughly ignited, and which has its forward portion tapered down to a reduced neck or discharge passagea", connected at its outer end with a flaring mouth a all for the purpose and object, and operating in the manner as fully set forth in the pending application hereinbefore referred to.

Within the rear portion of body A, is the perforated plate or partition B, which serves to divide the air entering passage a into a number of small jets or streams, so as to facilitate the thorough mixing of the air with the steam and oil, in mixing space or chamber a. To the rear of such plate or partition there is an enlarged chamber C, shaped like that at the forward end of the latter named chamber. Through this, the air entering by pipe C is to flow on its way to the perforated partition and passage a. Connected with the outer end of pipe C is the air pipe C which is to communicate with any suitable supply of air, preferably heated. If desired, such heating could bereadily and economically secured, as the air passes along through the pipe, by placing'a portion of the latter in the fire box or in the path of some of the flame issuing from the burner. A valve cis placed in or on pipe C, so that the flow of air forward through the burner can be regulated, or the passage through the pipe can be stopped, at will. Connected with such pipe C, between the valve and theair chamber C, is the steam pipe D provided with the valve or stop cock d. Such pipe can be in communication with any desired source of supply of steam. As shown, it is connected by pipe D with the steam pipe E, which delivers steam, preferably dry or superheated to the steam inlet a hereinbefore described. Between the points where it connects with pipe D, and the inlet, respectively, there is another valve or stop cock 6, to regulate the flow of steam or check it, when it is to be turned through the pipes D and D into the pipe or chamber running to the rear of the burner proper, as hereinafter described. The oil pipe F, for conducting the desired hydro-carbon to the oil inlet a, also, has a valve or cook f, for controlling the fuel supply, and is to be connected with some source of. liquid fuel, which will deliver the latter under head or pressure, so that it will spurt in a small jet from each oil jet hole a A head or pressure of about four pounds has been found sufficient for this purpose, even in the case of a burner large enough to heat a one hundred horse power boiler.

With the construction and arrangement of apparatus, as shown and described, the valve or cock 0 is normally open, so as to admit air to the interior of the burner, the cock dis closed, and the steam and oil cocks c and f, are open to permit the required How of steam and oil. The burner then operates to deliver from its mouth, a mass of clear, white, smokeless flame,without causing objectionable noise or injurious vibrations of the boiler settings or furnace walls, all as set forth fully in the said other pending application.

In the hydrocarbon burners, as heretofore used, it has been found that, after continued use, especially where the fuel is crude, or of low grade, there will be a fouling or clogging, interfering materially with the proper and best action of the burners. It has, therefore, been necessary, from time 'to time, to take off the burner, or disconnect its parts, and remove the clogging deposit with kerosene, or other means applied to each part. In a burner to which my present invention is applied, such tedious cleaning operation, involving entire stoppage of the action of the burner, is avoided. All that it is necessary to do, to secure the most thorough cleaning out of the burner, is to close the valve or cook a in air pipe C, and cock 6 in steam pipe E and open cock (1. Steam will then rush from pipe D throughout the burner, carrying 06 all clogging deposit or dirt, so as to leave all the passages clear and clean. During this cleaning operation, which is a very quick and short one, the valve f in the oil pipe can be left wholly or partially open, so that the flame will not go out, and the burner will at once resume its most advantageous normal action, as soon as the steam is shut ofi from pipe 0', and admitted through the steam inlet a again; or, if a temporary stoppage of the flame is not objectionable, the valvefcan be closed to shut off the oil entirely, during the cleaningoperation. Afterthecleaning,which, with the hot steam, need not last more than a few seconds, the valve 6 is opened, valve d is closed, and air valve 0 is opened, the oil valve f being, of course, opened also, if it has been closed; and the burner is ready to re sume its normal operation, which it will do, without further lighting being necessary, if the feed of fuel has not been cut off by entire closing of valve f. I have also found, that where it is desired, during the regular action of the burner, to increase the amount of air fed through passage a, the desired end can be reached, by partially opening valve (I, so as to admit a little steam into the air pipe 0, which, flowing forward through such pipe, assists or increases the rapidity of the flow of air, on its way to the mixing chamber.

As will be seen from the drawings and description hereinbefore given, my cleaning appliance is exceedingly simple and cheap, adding but slightly to the cost of making the burner, while increasing its efficiency, and making it more convenient for use and capable of being employed continuously, for an indefinite length of time, without any substantial interruption for cleaning or clearing out the parts, even where crude, or very low grade oil is used, forthe fuel.

Having thus described my invention, what I claim is- 1. A cleaning attachment for liquid fuel burners, consisting of a supplemental steampipe, for dischargingacleaningblastof steam through the burner, in addition to the air, steam, and fuel feeding devices and connected with a source of supply of steam, and with the burner, so as to direct a cleaning blast of steam through the air-passage of the latter, past the fuel-jet opening or openings, and through the mixing chamber, and provided with suitable means for normally shutting off the cleaning blast, during the operation of the burner, and turning it on, at will, to clean the latter, substantially as :and for the purpose specified. I

2. In combination with a hydro-carbonburner having means for supplying and mingling the hydrocarbon, steam, and air, a supplemental steam-pipe, in addition to the hydro-carbon, steam, and air supplying and mingling devices, connected with a source of supply of steam, and with the air-passage of the burner, to the rear of the mingling devices, so as to direct a cleaning blast of steam past the same, and suitable means for turning on and shutting 0E such cleaning blast at will, substantially as and for the purpose shown.

3. In combination with a hydro-carbonburner having means for supplying and mingling the hydro-carbon, steam and air, a supplemental steam-pipe, in addition to the hydro-carbon, steam, and air supplying and mingling devices, connected with a source of supply of steam, and adapted to direct a blast of steam, from the rear of the burner, through the air-passage, a valve or stop-cock in the air supply pipe, to the rear of the point of entrance of the steam-blast, and avalve or cook in the supplemental steam-blast pipe, to keep the blast normally turned off and turn it on, when the burner is to be cleaned, substantially as and for the purpose set forth.

4:. In combination with the hydro-carbonburner having a suitable mixing passage and means for injecting steam and hydro-carbon into the same, an air supply passage leading 10 for turning on and shutting off the cleaning blast, substantially as and for the purpose described.

In testimony that I claim the foregoing I have hereunto set my hand this 24th day of December, A. D. 1892.

COLIN W. OLAYBOURNE.

Witnesses:

HENRY J. SPANN, HERBERT E. FIEBER. 

